My Father has a 2002 450S 4X4 and the vavles started ticking so I took it to the dealership for him and the mechanic tore it down and said the
Guide Valve Seat
was worn/broken from the head and cause it's a different kinda metal and it doesn't have a part number and had to order a whole new head.

I asked if he could just install new Guide Valves but apparently that isn't the problem and it's the seat which is that it installs into the head.

HAS ANYONE ELSE HAD THIS PROBLEM???

They don't won't to JB Weld it or anyhting caus ethe figure it will just break again. (SOunds like they have seen a few of these are there shop.

 

It sounds like they are fixing it right. Sit back and wait a couple days

 

I know there fixing it right which is fine and the best way to do things but I want to know if this is a regular problem or not we have 5 other 450s in the famialy

 

Anyone else>